Finding the Fourth Proportional to 3,788.47, 5,227.50 and 2,216.26

Step by Step Solution

1. Step 1: Write the proportion equation
   3,788.47 : 5,227.50 = 2,216.26 : x
2. Step 2: Convert to fraction form
   3,788.47/5,227.50 = 2,216.26/x
3. Step 3: Cross multiply
   3,788.47x = 5,227.50 × 2,216.26
4. Step 4: Simplify right side
   3,788.47x = 11,585,499.15
5. Step 5: Solve for x
   x = 11,585,499.15/3,788.47
6. Step 6: Final answer
   x = 3,058.09